Inhalation of emissions from petrol and diesel exhaust particulates is associated with potentially severe biological effects. In the present study, polycyclic aromatic hydrocarbons (PAHs) were identified from smokes released by the automobile exhaust from petrol and diesel. Intensive sampling of unleaded petrol and diesel exhaust were done by using 800-cm(3) motor car and 3,455-cm(3) vehicle, respectively. The particulate phase of exhaust was collected on Whatman filter paper. Particulate matters were extracted from filter paper by using Soxhlet. PAHs were identified from particulate matter by reverse phase high performance liquid chromatography using C(18) column. A total of 14 PAHs were identified in petrol and 13 in case of diesel sample after comparing to standard samples for PAH estimation. These inhalable PAHs released from diesel and petrol exhaust are known to possess mutagenic and carcinogenic activity, which may present a potential risk for the health of inhabitants.
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http://dx.doi.org/10.1007/s10661-009-1101-8 | DOI Listing |
Front Biosci (Elite Ed)
October 2024
Department of Environmental Biotechnology, Biotechnology Research Center, Al-Nahrain University, 10018 Baghdad, Iraq.
Background: Contamination with crude oil and hydrocarbons has become a global threat. Such threats have urged us to invent solutions to deal with this dilemma. However, chemical treatment comes with limited benefits.
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December 2024
Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, 75132-903 Anápolis, GO, Brasil.
Biodiesel offers an alternative to fossil fuels, primarily because it is derived from renewable sources, with the potential to mitigate issues such as pollutant and greenhouse gas emissions, resource scarcity, and the market instability of petroleum derivatives. However, lower durability and stability pose challenges. To address this, researchers worldwide are exploring technologies that employ specific molecules to slow down biodiesel's oxidation process, thereby preserving its key physicochemical properties.
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December 2024
Sinopec Research Institute of Petroleum Processing Co., Ltd, 18 Xue Yuan Road, 100083 Beijing, People's Republic of China.
Hydrocracking has become the main technology for producing diesel fuel in many refineries, the key process to meeting new product specifications as environmental regulations for transportation fuels become more stringent. The efficacy of the hydrocracking catalyst is a pivotal determinant of the reaction performance. This study leveraged high-throughput experimentation to closely examine the impact of support properties on both the catalytic activity and the selectivity of middle distillates.
View Article and Find Full Text PDFSci Total Environ
December 2024
Climate Policy Lab, ETH Zürich, 8092 Zürich, Switzerland; Laboratory for Energy Systems Analysis, PSI Center for Energy and Environmental Sciences, 5232 Villigen, Switzerland. Electronic address:
To reduce environmental impacts from the shipping industry, the FuelEU Maritime Regulation has set a binding 80 % reduction target for well-to-wake (WTW) greenhouse gas (GHG) emissions by 2050. This article presents a prospective life cycle assessment (LCA) comparing the environmental impacts of e-ammonia, e-methanol, e-Fischer Tropsch (FT) diesel, and e-liquefied natural gas (LNG)-for maritime applications in Europe. In addition to e-fuels, traditional propulsion technologies using very low sulfur fuel oil (VLSFO) and LNG are assessed, both with and without integrating ship-based carbon capture (SBCC) systems.
View Article and Find Full Text PDFJ Environ Manage
December 2024
Akdeniz University, Faculty of Science, Department of Chemistry, Antalya, Turkey.
In this study, activated halloysite nanotube (HNT) and phenyltriethoxysilane (PTES) were utilized for the first time to fabricate modified HNT materials and coat them onto melamine sponge (MS) substrate in the supercritical carbon dioxide (scCO) atmosphere. The successful coating of MS substrate was confirmed using SEM, EDS, XPS, and contact angle measurements. The drainage technique applied in the CO medium achieved the uniform coating of both the inner and outer surfaces of the MS.
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